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  • Verified reviews icon34
    Verified drywall insulation services reviews

Top-Rated Drywall insulation pros in Saint Helena - Updated Nov 2026

Avatar for Ace Insulation, Inc.
Ace Insulation, Inc.
3.5(
30
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Saint Helena, CA and surrounding areas

Approved

In business since 2011

Free estimates

Credit card accepted

"I needed to fix ceiling insulation after a major leak into the living room. The insulation was pulled up to allow things to dry out, but the company that did the drying (Stanley Steamer) said they would not put the insulation back. I called Ace because of all the great reviews on yelp. The bid was $650. I accepted it, and an excellent workman arrived on time as arranged. Here is the rub: The workman was finshed in 1/2 hr (!!!!!), and my jaw dropped. I thought for the price must be going to take at least a few hours. I had agreed to the price, though, so I wrote the check, as well as an email to the estimator for the job explaining how distressed I was by this. The email was passed to the manager of the Sacramento office, who called me right away. He said he would have felt the same, and that he would tear up the check and give me a new price. We met the next week, and he charged me half of the original bid. He gave me my original check and took my new check for $325. Here is what you should know about the price: The invoice had two *Service* items: a *show up fee* of $250, and another called *Work performed as per quote. This was followed by a *Quote adjustment based on actual work* of -$325. I truly appreciate the businesslike approach to the work: On time, done right as best I can tell. I also appreciate the response to my distress over the clear miscalculation. In spite of this, I feel overcharged even at half the original quote. The *show up fee* should have covered everything, so the maximum bill should have been $250. There was extremely little work performed, even if it was done well and professionally. In retrospect, I have no idea what the estimator included in $400 for *Work performed as per quote.* What did Ace do wrong? The estimator should have seen there was less than an hours work involved and told me that the minimum charge would be $250 to show up. If there were other minimum charges, such as a minimum of an hour of work, those should have been explained by the estimator so that I had some basis for understanding the bid and the opportunity to decide that the price was possibly going to be too high. The estimator said nothing about this, and there was no detail in the estimate. I believe I have given a fair revue for this disappointing experience. Ace has excellent customer service, and as best I can tell, the work was performed well. The pricing at first was way out of line, and ultimately still seems to me to be too high. But the job is done, and I am sure if there is any reason to, Ace will stand behind their work."
Response time2 days
56 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for C E L Insulation
C E L Insulation
4.0(
25
)
Injection Insulation - Install

Serving Saint Helena, CA and surrounding areas

In business since 2011

Free estimates

Offers commercial services

"Great company with great customer service. They were really professional and personable with everyone. I did a bit of research and got some additional estimates. Still very, very happy with their work. They were respectful of my property while doing the work. I most definitely will continue to hire and I highly recommend."
Response time2 days
Response rate86%
Recommended by80%of homeowners
Avatar for Landmark Energy Upgrades
Landmark Energy Upgrades
4.8(
59
)
Blown-In Insulation - Install or UpgradeInjection Insulation - InstallInsulation - Install or Upgrade

Serving Saint Helena, CA and surrounding areas

In business since 2009

Free estimates

Emergency services offered

"Last week I had Landmark energy upgrades, do energy efficiency work at my home. The work included sealing all my duct-work in the attic as well as sealing all the spots between the living space below and blowing in additional insulation in order to bring me up to today's standards. I also had them replace all the duct work in my crawlspace and seal it as well as when they came for their initial inspection they found that my duct-work was riddled with holes and was completely uninsulated as well as being unsealed. I initially contacted Landmark after receiving notification that they were offering assorted rebates for home owners to incentivize them to do upgrades to there homes.
I was super pleased with these guys, a total of two crews worked on our home and they were both quick, professional, and explained what they would be doing in detail when they first arrived. They also did a good job cleaning up after themselves. Immediately I noticed a difference in my home after the work was finished. The HVAC system weren?t running nearly as much and the temperature in the home was absolutely more consistent.  Landmark Energy Upgrades promptly handled all the paperwork required in order for me to receive my rebates making this part of the process extremely easy. I fully recommend these guys!
"
Cool Roof Install
Energy Upgrade
HVAC Air Duct
Home Energy Audit
Energy Upgrade Contractors

+6

Recommended by98%of homeowners
Empire Insulation Contractors
3.8(
18
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Saint Helena, CA and surrounding areas

In business since 2003

Free estimates

"Craig, good natured guy whose rig was wide and access to the property was difficult. After looking at numerous solutions, he had to back out blind and didn't hurt a twig doing it. Arrived on time, job took exactly time estimated, and appears to have topped off the job with few more inches than required. Best price as well. I was impressed. Definitely call again on other work and recommend to friends and clients."
Recommended by100%of homeowners
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Drywall Insulation FAQs, answered by experts

New plaster must be fully dry and cured before painting. The drying time for plaster ranges from 1 to 4 hours, but the curing process can take more than five days, depending on various factors, including humidity levels, temperature, the amount of plaster used, and airflow in the area. You should always apply primer before painting plaster.

Drywall can be toxic to the environment and to humans in some cases. As drywall breaks down in a landfill and comes in contact with other organic chemicals, it can create hydrogen sulfide gas or leach into the groundwater. Additionally, the CDC recommends methods for controlling the inhalation of drywall dust when handled. While the common ingredients of drywall—gypsum, silica, and mica—are naturally occurring, they can cause irritation in some humans.

Plastering lasts for around 15 to 20 years without needing repairs or maintenance in most cases, and with proper upkeep, plastering can last a lifetime—sometimes more than 100 years. Plaster repair costs between $1 and $3 per square foot, and you may need these services once every 15 to 20 years or so unless you have a harsh climate where humidity changes are a constant issue. You can also opt to skim-coat plaster for between $0.90 and $1.30 per square foot, which may serve you better in the long run.

Look for flaking paint or air bubbles that burst and then flake away. Paint will begin to flake after being exposed to minimal moisture or water, so it’s a good indicator of any water damage. If you notice your paint starting to flake, feel the plaster underneath to see if it is soft or damp.

Plaster itself has a higher R-value than drywall. However, there are other considerations surrounding plaster and insulation. As a general rule, it's easier to obtain consistency in insulating value and quality when working with drywall rather than plaster. Plaster walls often don't contain any insulation behind the wall covering by design, and careful evaluation is necessary when choosing to add it.

The Saint Helena, CA homeowners’ guide to drywall insulation services

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